Two-wheel tractor.



H. J. STEGEMAN.

TWO WHEEL TRACTOR.

APPLICATION FILED 'DEC- 27. l9l2.

l 1 88,696. .:lt01 1f0d June 27, 1915..

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ZTWO WHEEL TRACTOR. APPLTICATIQN FILED DEC. 27, 1912. 1,188,696. v latented June 27,1916.

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ATTORNEY j z mn. 1. STEGEMAN.

TWO WHEEL TRACTOR.

APPLICATION EH |.D DEC.21, 1912. I

Patented June27, 1916.

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\ I o J WITNESSES: 5 n 55]? f mwsnrop I T- nry l57qeman 1 B V I g9 g7 ATTORNEYS H. STEGEMAN.

TWO WHEE L TRACTOR. APPLICATION FILED nc.21.|9|2.

1 ,1 88,696. Patented'June 27,1916.

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WITNESSES: l/VVENTOB J-[enr JISte emcm W; r

ATTORNEYS UNITED STATES PATENT OFFICE.

.HENRY J. STEGEMAN, OF BRIDGEPORT, CONNECTICUT, ASSIGNOR OF ONE-HALF T WILLIAM J. PERRY, 0F BRIDGEI ORT, CONNECTICUT.

TWO-WHEEL TRACTOR.

Two-Wheel Tractors, of which the follow ing is a specification.

My invention relates to a two wheel tractor, and is designed to draw agricultural implements, such as plows, wagons, harrows,

harvesters or other forms of field or road' machines having a tongue or beam for attachment thereto. 7

The object of the invention is to improve upon that,type of tractor shown and described in my prior patent application filed September 20, 1911, #650,355; and particularly to provide improved steering orguiding means for a tractor of that class and whereby it may be more easily operated; to design the device so that the power of the motor of the tractor may be utilized to efiect the steering of the same and thereby relieve the operator ofmuch manual labor; and finally to arrange the said. power steering means so that the same may be also used as a brake The invention consists in the construction and novel combination and arrangement of parts hereinafter fully described, illustrated in the accompanying drawings, and. pointed out in theclaims heretoappended, it being understood that various changes in the form, proportion, size and minor details of construction within the scope of the claims may be resorted to without departure from the spirit or sacrificing any of the advantages of the invention.

Similar characters of reference denote like or correspondin parts throughout the several figures of t e accompanying four sheets of drawings forming a part of this specification, and upon which,

Figure 1, is a top plan View of the tractor complete. Fig. 2, shows a side elevation of my improved tractor upon a somewhat reduced scale connected to a supporting cart. Fig. 3, is an enlarged cross sectional elevation taken on line 33 of Fig. 1. Fig. 4, is a detail cross sectional view taken on line 41 of Fig. 3. Fig. 5, shows a detail Specification of Letters Patent. Patented J ne 27, 1916.

Application filed December 27, 1912. Serial No. 738,821.

plan View of lever and steering mechanism located beneath the steering wheel. Fig. 6,

is a detail cross section of operating shaft and lever taken on line 6-6 of Fig. 3. Fig. 7, is a detached sectional elevation of transmission gearing, shafts and clutches.

As will be noted from the drawings my improved tractor is provided with but two wheels that are arranged side by side and both of which constitute driving wheels and serve to support the tractor and draw it and its attached load. A gasolene motor is employed as the operating medium for the tractor and it is arranged upon the for-.

ward end of the frame of the machine, while the steering mechanism and drivers seat is located upon the rear end of the frame so that the entire load is about equally divided forward and aft of the axle to which the supporting wheels are attached.

As designed the machine is only operatable when attached to a vehicle or implement which thus serves as a third supporting means in addition to the said tractor wheels. The implement or vehicle to be drawn is attached to a draw bar pivotally connected to the frame and to the rear of the main axle and is obviously. designed to be'drawn behind and in close proximity to the tractor itself. This enables an operator to make very short turns with the connected deviceswhich is particularly desirable when attached to a plow or harrow and when in the act of cultivating a vineyard orother closely planted rows of plants.

Referring in detail to the characters of reference marked upon the drawings 10 represents the two large tractor wheels which are loosely mounted to turn upon a shaft 11 secured to the under side of the side members 1 212 of the frame. These two steel beams 12 of the frame extend longitudinally forward and aft of. the axle and together with the end pieces 13 consti oil mes

"fillet discharges 18 supported the seiol took 20 y wheel 21 22 chat is through elie medium oi. eiflelenlaiol geer- L e co This si'ge beveleel gear 26 eve gear (not eively mounted Q ,4, I" and the extended pormons 01 one casing o. elriving e eollow hob fao lac do I J A 1 A. of smell gallons 2:) are loo iy "1' 1 l, 31, mounted con'ieo .111 me large gear 528 and mesh-with eml '6. we Gillie? beveled. gears momm s upon the sale shafts 23 and 2e i'espec said shefis may the e separate y wielr loralze drums and are clutched The casing 25 is supporteel upon "brackets 34% secured to the. before memionel parallel sicle beams 12 of the in e memier m insure the proper positioning of outer ends ofelie shafts wiiiliio She of the elector wheel and so the ,111 :55} operated elzrongo seiel shells will engage end. drive the internal 36 seemed to the inside of the tractor wheels. are secured upon the ootee cools the two shafts 23 end end the omlze drums 32 The operation of else solo. sliel 'is 26 27 normally it-o of soiel pinions and ibllo'ogh the shafts may be shifted or stopped by "the intervention of either of ewe clu'licli meimoei's 3'? loosely mounted on the sllefos we desigioeel so engage the drums eocl 33 eel with the hub 02? the pinioos The clutch members 3'? may be made to operate indepemlenzbly the seiol drums 32 my 33 wieh e View of checking on .mov i one 'breeeor wheel only by iJilG fooiv'pedals 5? or ol 'endtlierelajr a gftlle other wheel novel around. o1: wey efi'ect the 2111:. of the meclme three the power imperiled from the motor and by the turning of the steering wheel.

Upon the rear of who frame ismounted e platform em; supports for the operator anal clirectly in from of the seal; is a steering wheel 39 cem'iesl by s vertically disposed shaft having; e sprocket wheel 4:8 mount-ed upon its lower em gorlgion; sprocket chain 41 engages this wheel and extends outward over idler: rollers 41 ll and 3%42 and i further guided in srcoete guidewey 42 beneeiali the eclge eioe ol ,1 e oleirorm and has its two ends 3 escliecl "co s3 drew oer 4(3- tliei, is pivoell cenneced izo e cross piece 13 eml e pivotal zoini; is aemng'ecl lzo the rear of the agile of the tractor so as to pencil. the machine lo lee-lie very short turns.

Tlhcimplement to be drawn, as fol? insence fillet shown in Fig. 2, is detechebly .conneceecl $0 the drew bar 43 and thus forms e third suoporiz for the machine and makes v e on opera/table two wheel tractor. As oe fore seated 1t may be e. wagon, plow, borrow or similar machine. The tractor 1s adept-eel to Foe used; in connection with most any forge farm implement end for convemence F handling 35 may use a simple form of ig. wheel cert, like that shown in Fig. 2. whieli includes scale 44, tongue is wheelsie, This cert like other vehicles is clot: lielvly connected "to i1. omw em: 43 mus meals to follow Toehi encl support poi-lion. of the machine. homing of steering wheel to the llglli', or to if, left the sprocket chain 41 is ooiresoooofm l leewo in a, way to bowl to pull the clree be? and its connected su 'xpoil', be the right or left as desired, thus getting foe drew bee end. support 0118'; of elinemem; wth the wheels of the tractor which when elie machine is in operation ere readily cli r oted to the riglrl, or left as the case may be, addition to the said steering means pl'ovide mechanism which maybe simulleneously operated by the same operator end whereby the power of the tractor moeor may be applied to only one of the wheels while the other is ielol stationary or retardeel by means of a brake leaving the other free lo move mound it. These devices elie stoppinlg'of the wheels may also be ope? steel simultaneouslyeo'sercve as a brake both of ehe wheels when the motor is disengaged as will be apparent from the de scription to follow.

supporting rod 4i? extends across through the frame of the tractor and has irks ewe ends secured to the opposite side'oeams 12 of the frame and serves as a, bearing for: the hollow rocker shafts 48 and 49 mounted thereon and between the ewe said side memloers of the frame. Four operating levers are mounted. upon the longer one 48 of these hollow rocker shafts. vSome of these levers are loosely mounted upon the shaft 48 enol others are secured thereto as will later be explained. These levers include a lever 50 that is loosely mounted upon the said rocker shaft and extends up through an slot formed in a, suitable bracket 51 and serves to operate either of two slides 52 and 53 end which in tum are connected with a power lllffiJlSHllSSiOlfl, not shown, for the purpose of oggcreifing fiche some. is clutch lever 54:

also arranged in close proximity to the drivers seat and has its forwardly extended 1 portion connected with a clutch, not shown, for connecting and disconnecting the engine and transmission in the usual manner.

' Upon the outer end portion of the shaft 48 is secured an arm 55 that is connected by a link 56 with an arm of the expandable shaft and its arm 55 and 'right'hand brake 33. An arm 58 is loosely secured upon the rocker shaft 48'and has its outer end portion operatively connected with the clutch lever 54 so as to also be affected by the operation of said clutch lever, and to put on the brake when clutch is thrown out. A brake lever 59 is pivoted to the short end of this arm 58 and is supported in a vertical position adjacent to the drivers seat, and is used when desired for the simultaneous operation of both brakes. This leveri58 extends upward between two cross rods 60 and 61 forming the forward and rear members of a truss that is arranged above and longitudinal of the rocker shaft and has its .two end portions in engagement with lugs 62 on the arms 55 so that a forward movement of the said brake lever will engage the forward rod- 60 of the truss in a way to move the same forward and likewise the lugs and arm 55. Springs 63 arranged intermediate of the lugs 62 and the cross bar 64 of the frame serves to normally hold the said truss frame and levers engaged thereby in a normal rearward position so that the operation of any of the said levers in a forward direction would be against theiaction of the said springs. As willhe seen-the brake lever 59 is susceptible of a slight independent movement'of the arm 58, existing by reason of the space between the said lever 59 and the rods and 61of the truss thereby permitting of an independent movement of the clutch lever 54 whereby the clutch may be manipulated without affecting the brake. On the other hand, it serves to insure the operation of the said clutch lever and a. dis-' engagement of the clutch at such times as when the brake lever is thrust forward to effect the engagement of the brakes-and the stopping of the movement of the machine.

The arrangement of the foregoing construction is so convenient and effective that the brakes serve not alone as means to assist in steering the machine, but also in stopping it while under way, both features of which are very necessary to the convenient and practicable operation of a two wheel tractor and thus constitutes an important feature in this class of devices.

Having thus described my invention what I claim and desire td secure by Letters Patent is:

1. A two wheel tractor of the class described, the same comprising a frame, a pair of driving wheels, an engine and transmission for operating the mach1ne, a pair of driving shafts, a differential gearing connecting the two shafts, a friction clutch connection between the respective driving Shafts and driving wheels, means for op erating the respective clutches to efiect a stoppage of either wheel as desired, means for simultaneously operating both clutches to stop both wheels and a lever connected with said stopping means for disconnecting the engine and transmission.

2. In a two wheel tractor of theclass described, the combination with 'a frame, a pair of driving wheels for supporting the frame and tractor, a pair of driving shafts, a gear and friction clutch on each of the respective driving shafts, a, supporting rod, rocker shafts mounted thereon, a lever mounted on each rocker shaft for operating each clutch, means foroperating both the said shafts and clutches to efiect a stop-' page of both wheels. 4 3. In a two wheel tractor of the class described, the combination with a frame, a pair of driving wheels'for supporting the frame and tractor, a pair of driving shafts, a gear and friction clutch on each of the res ective driving shafts, a supporting rod, roc er shafts mounted thereon, a vlever mounted on each rocker shaft for operating each clutch, a draw bar pivotally' gear and friction clutch on each of the respective driving shafts, a steering gear and hand wheel, connections therewith to swing the draw bar, a supporting rod, rocker shafts mounted thereon, a lever mounted on each rocker shaft for operating each clutch, means to limit the swing of the .bar pivotally connected to the frame for connection to a vehicle to be drawn.

5 A two wheel tractor of the class described, the same comprising a frame, a

pair of driving wheels, a motor and transmission for operating the machine, a pair of driving shafts, a differential gearing connecting the two shafts, a friction cl t connection between the respective driving shafts and driving Wheels, means for 0perating the respective clutches to eiieci; a stoppage of either Wheel as desired, means 5 for simultaneously operating both clutches to stop both wheels anal :2, lever conneeiecl with said stopping means for disconnecting the engine and; liransmissioii a draw bar hinged to the frame, means to limit 10 the movement of the draw be in either di- 60 fies of Ehle .etenia mew m: eke-ewes? live [SQXEEEZ u I u reetien, a steering; Wheel eeim with s'lieering Wheel itlqe :lrew operating the Signed at Bridgepei'i; in the were Fairfieli and of Genneetieuiz is (lay cf December A. HENRY STEG-Elaflilil.

Witnesses:

(1- M. Nmvimi EB EARLE Gui-20m 

